Year	Number of Firms
1992-01-01	13
1997-01-01	18
2002-01-01	22
2003-01-01	34
2004-01-01	38
2005-01-01	31
2006-01-01	35
2007-01-01	46
2008-01-01	65
2009-01-01	53
2010-01-01	49
2011-01-01	49
2012-01-01	46
2013-01-01	55
2014-01-01	53
2015-01-01	60
2016-01-01	56